JPH05107973A - Fixing device for image forming device - Google Patents

Abstract

PURPOSE:To prevent the pollution of working environment and to prevent ozone from being discharged to the outside of the device at a high concn. by incorporating a perfume or ozone decomposing component into oil. CONSTITUTION:The perfume is incorporated into the fixing oil to be applied on a fixing roller by a coating felt 4. The fixing oil is applied on the fixing roller 1 of 175 deg.C surface temp. and the perfume component in the oil evaporates to release the perfume into the air in the device. This perfume is discharged to the outside of the device by an exhaust fan 11, etc., and is dispersed into a room, by which an aroma is eventually diffused in the room. The perfume- contg. oil applied on the fixing roller 1 sticks to transfer paper 10 and is discharged to the outside of the device when the transfer paper passes the nip part of both rollers 1, 3. The ozone-decomposing component in the oil evaporates and decomposes the ozone in the device by mixing therewith when the fixing oil incorporated therein with the ozone-decomposing component is used. The ozone-contg. air lowered in the concn. is discharged through an ozone filter by the exhaust fan 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device for an electrophotographic image forming apparatus.

[0002]

2. Description of the Related Art Most of the conventional fixing devices of this type of image forming apparatus are the same as those of the embodiment of the present invention shown in FIG. 1, and therefore the description will be made with reference to this. This apparatus includes a fixing roller 1 having a heater 2 therein, a pressure roller 3 that is pressed against the fixing roller 1, and an oil coating felt 4 that coats the fixing roller 1 with oil. The fixing oil contained in the oil tank 7 is supplied by the oil pump 6 through the oil supply pipe 5. In such a fixing device, a transfer paper 10 on which a toner image is transferred by a transfer device (not shown) is conveyed, heated and pressed between both rollers 1 and 3 to fix the image, and then a paper discharge roller. 9 is discharged to the outside of the apparatus.

[0003]

By the way, in such a fixing device, as the fixing work is performed and the temperature rises, an offensive odor due to toner, paper, oil, ozone, etc. is generated, and it is ejected to the outside. Then, there is a problem that it diffuses in the workplace and pollutes the environment. In particular, if ozone accumulates in the image forming apparatus, it deteriorates the photoconductor (not shown). Therefore, the exhaust fan 11 discharges it to the outside of the apparatus. There is a problem of having an adverse effect.

An object of the present invention is to solve the problems of the fixing device of the conventional image forming apparatus as described above, and
An image forming device that erases the offensive odor generated by paper, oil, ozone, etc., does not pollute the work environment, and does not adversely affect the human body by discharging ozone in high concentrations outside the device. To provide a fixing device.

[0005]

In order to achieve the above-mentioned object, the present invention provides a fixing roller having a heating source, and a pressure roller for applying pressure to the fixing roller. A fixing device for an image forming apparatus, comprising: an oil supply unit for supplying oil to a fixing roller; wherein the oil contains a fragrance. According to a second aspect of the present invention, there is provided a fixing device for an image forming apparatus, comprising: a fixing roller having a heating source; a pressure roller that pressurizes the fixing roller; and an oil supply unit that supplies oil to the fixing roller. The present invention relates to a fixing device of an image forming apparatus, wherein the oil contains an ozone decomposing component.

[0006]

In the invention of claim 1 as described above, when the fixing action is performed, the fixing oil is applied to the fixing roller having a surface temperature of 175 ° C. or higher, and the perfume component in the oil evaporates, and The fragrance is released into the air and is discharged to the outside of the device by an exhaust fan etc. to diffuse into the room, causing an fragrance, and when the transfer paper passes through the nip part of both fixing and pressure rollers, the fixing roller The perfume-containing fixing oil applied to the toner adheres to the transfer paper, and the perfume component in the oil adheres to the transfer paper and is discharged to the outside of the apparatus. The aroma improves the atmosphere in the workplace. In the invention of claim 2 as described above,
When the fixing action is performed, the fixing oil is applied to the fixing roller in the same manner as in the first aspect of the invention, the ozone decomposing component in the oil is evaporated, and the ozone decomposing component is released into the air in the apparatus, The ozone filled in the equipment is mixed and decomposed sequentially, and the clean air from which ozone is removed in this way is discharged to the outside of the equipment. Reduce.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In each of the following embodiments, the same parts as those of the conventional image forming apparatus will be designated by the same reference numerals and description thereof will be omitted, and different parts will be mainly described. In the embodiment of the invention of claim 1 shown in FIG. 1, the fixing oil applied to the fixing roller 1 by the application felt 4 contains a fragrance, and as this fragrance, a commercially available fragrance or lotion etc. The fragrance ingredient of In the fixing device as described above, when the fixing action is performed, the surface temperature becomes 17
The fixing oil as described above is applied to the fixing roller 1 at 5 ° C. or higher, the perfume component in the oil is evaporated, the perfume is released into the air inside the device, and is discharged outside the device by the exhaust fan 11 or the like. It diffuses throughout the room, causing aroma to drift.
Further, when the transfer paper 10 passes through the nip portion between the rollers 1 and 3, the fixing oil containing the fragrance applied to the fixing roller 1 adheres, and the fragrance component in the oil adheres to the transfer paper 10 and the apparatus is maintained. If it is discharged to the outside and distributed in multiple sheets, the fragrance will improve the atmosphere in the workplace.

The embodiment of the invention of claim 2 shown in FIG. 4 is that an ozone filter 13 is provided in front of the exhaust fan 11, and the fixing oil contains an ozone decomposing component instead of a fragrance. It is different from the above-mentioned embodiment, and there is no difference in other points. The ozone decomposing component may be a commercially available one such as an ozone decomposing agent manufactured by Ricoh Techno Research. In such a fixing device,
When the fixing action is performed, fixing oil is applied to the fixing roller 1 in the same manner as in the above-described embodiment, the ozone decomposing component in the oil is evaporated, and the ozone decomposing component is released into the air in the apparatus, When the ozone-containing air whose concentration is reduced by mixing with the ozone in the device and sequentially passing through it is passed by the exhaust fan 11 through the ozone filter 13, the ozone is removed by this and the clean air is obtained. Is discharged to the outside of the device. At this time, the ozone in the room is also reduced by the residual ozone decomposition component in the exhaust gas.

In the fixing device as described above, the practical viscosity of the oil used is preferably 300 ± 50 cs,
In FIG. 2, in the area A having a lower viscosity than that, there is a possibility that the fixing roller 1 made of rubber permeates and expands, thereby causing a change in the nip pressure and the like to deteriorate the fixing property. Further, in the high-viscosity region B, the permeability to the coating felt 4 is poor, the oil supply to the fixing roller 1 may be insufficient, and hot offset may occur. The content of fragrance components or ozone decomposing components in such oil is 30% of the total.
It is preferable to set it below, and if it is more than that, oil performance may be impaired. From the above, when the viscosity of oil alone is 200-300cs, the fragrance component or ozonolysis component should be 1000cs or more as the content rate of about 5-30%,
If the viscosity of the oil alone is 300cs or less in this way, adjust the viscosity with the content rate (30% or less) of the fragrance component or the ozone decomposing component,
For this reason, there is a certain range in the viscosity range of oil alone. This relationship is shown in FIG.

[0010]

The present invention is as described above. According to the invention of claim 1, a fixing roller having a heating source, a pressure roller for applying pressure to the fixing roller, and an oil for supplying oil to the fixing roller. Since the oil is provided with a perfume, the fixing oil is applied to the fixing roller when the fixing action is performed, the perfume component in the oil evaporates, and the perfume in the air inside the apparatus is increased. Is discharged to the outside of the device by an exhaust fan, diffuses into the room and gives off an aroma, and is applied to the fixing roller when the transfer paper passes through the nip part of both fixing and pressure rollers. The fragrance-containing fixing oil adheres to the oil, and the fragrance component in the oil is discharged to the outside of the apparatus with the oil adhering. The fragrance improves the atmosphere in the workplace. According to a second aspect of the present invention, there is provided a fixing roller having a heating source, a pressure roller for applying pressure to the fixing roller, and an oil supply means for supplying oil to the fixing roller. When the fixing action is performed, the fixing oil is applied to the fixing roller and the ozone decomposing component in the oil evaporates, so that the ozone decomposing component in the air inside the device decomposes. The components are released and mixed with ozone in the equipment to decompose them one by one, and the clean air from which ozone has been removed in this way is discharged to the outside of the equipment. Is also effective.

[Brief description of drawings]

FIG. 1 is a partially longitudinal front view of an embodiment of the invention of claim 1;

FIG. 2 is a practical viscosity distribution diagram of the above oil.

FIG. 3 is a correlation diagram between the oil viscosity and the fragrance content in the above.

FIG. 4 is a partially longitudinal front view of an embodiment of the invention of claim 2;

[Explanation of symbols]

 1 fixing roller 3 pressure roller 4 oil coating felt 6 oil tank 10 transfer paper 11 exhaust fan

Claims (2)

[Claims] 1. A fixing device of an image forming apparatus, comprising: a fixing roller having a heating source; a pressure roller that is pressed against the fixing roller; and an oil supply unit that supplies oil to the fixing roller. A fixing device for an image forming apparatus, which contains a fragrance. 2. A fixing device of an image forming apparatus, comprising: a fixing roller having a heating source; a pressure roller that is pressed against the fixing roller; and an oil supply unit that supplies oil to the fixing roller. A fixing device for an image forming apparatus, which contains an ozone decomposing component.